<mat-button-toggle-group class="scene-button-toggle" aria-label="Font Style">
  <mat-button-toggle value="bold">
    <mat-icon>format_align_left</mat-icon>
  </mat-button-toggle>
  <mat-button-toggle value="italic">
    <mat-icon>format_align_justify</mat-icon>
  </mat-button-toggle>
  <mat-button-toggle value="underline" [checked]="true">
    <mat-icon>format_align_right</mat-icon>
  </mat-button-toggle>
</mat-button-toggle-group>
